.left-layout {
  flex-shrink: 0;
  width: 300px;
  padding: 16px 0 0 8px;
}

.left-layout ul {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
}

.left-item {
  width: 140px;
  height: 40px;
  display: flex;
  padding: 4px;
}

.left-element {
  cursor: pointer;
  height: 100%;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #f5f7fa;
}

.left-element:hover {
  border: 1px dashed #ddd;
  color: #409eff;
  border: 1px dashed #409eff;
}
